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Why rumors about vaccines spread— and how to rebuild trust - Heidi Larson
lesson duration 16:08
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How to let go of being a "good" person — and become a better person - Dolly Chugh
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How one design flaw almost toppled a skyscraper
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Demolition, disease, and death: Building the Panama Canal
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Why are airplanes slower than they used to be?
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What it takes to be racially literate - Priya Vulchi and Winona Guo
lesson duration 12:23
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